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Find the sum to n terms of the series 1t...

Find the sum to n terms of the series `1times2+2times3+3times4+…`

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MAXIMUM PUBLICATION-SOLVED PAPER 18-EXAMPLE
  1. Find the square roots of the complex number (3+4i)

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  2. Insert five numbers between 8 and 26 such that the resulting sequence...

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  3. Find the sum to n terms of the series 1times2+2times3+3times4+…

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  4. Find the equation of the perpendicular bisector of the line joining th...

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  5. Find the coordinate of the points on the line y=3x-2 that is equidista...

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  6. Reduce the equation x - y=4 into normal form.

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  7. Write the distance of line x - y=4 from origin.

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  8. Find the derivative of f(x)=xsinx with respect to x.

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  9. Find the derivative of the function y=sqrt x with respect ...

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  10. Consider the point A (3,8,10) and B (6,10,-8).Find the ratio in which ...

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  11. Write the contrapositive of the statement: “If the integer n is odd, t...

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  12. Prove by the method of contradiction : sqrt7 is irrational.”

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  13. If ((x+3)/2,(y-1)/3)=(4,2),find the value of x and y.

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  14. Consider the function f(x)=abs(x) —3 draw the graph of f(x)

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  15. In the given figure radius of the circle is 2 units. Find the length ...

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  16. Find the number of words with or with out meaning, which can be made b...

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  17. A group consists of 4 girls and 7 boys. In how many ways, can a team o...

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  18. Write the expansion of (a+b)^n.

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  19. Find the coefficient of x^5y^7 in the expansion of (x-2y)^12.

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  20. Show that 9^(n+1)-8n-9 is divisible by 64.

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